Multi-way valve, air conditioning system and air conditioner

Abstract

The utility model discloses a kind of multi-way valve, air conditioning system and air conditioner, multi-way valve includes: valve body and valve core, valve body is equipped with valve cavity, valve body is equipped with multiple valve ports, multiple valve ports include first valve port, second valve port, third valve port, fourth valve port and fifth valve port;Valve core is movably arranged in valve cavity to make multi-way valve have first state and second state, multi-way valve has one valve port cut-off in first state and second state;Wherein in first state, first valve port and fifth valve port are communicated, second valve port and third valve port are communicated, fourth valve port is cut-off;In second state, first valve port and second valve port are communicated, third valve port and fourth valve port are communicated, fifth valve port is cut-off.According to the multi-way valve designed in the utility model includes at least five valve ports and at least has first state and second state, so that the air conditioning system flow path rich and varied with the multi-way valve is set.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning systems, and in particular to a multi-way valve, an air conditioning system, and an air conditioner. Background Technology

[0002] In related technologies, air conditioning systems are equipped with heat exchangers to exchange heat with the outside environment. Some existing technologies incorporate four-way valves in air conditioning systems. These valves create a pressure differential, causing a slider within the valve to move and alter the flow path, thus adjusting the flow path within the system. However, air conditioning systems with four-way valves have a single flow path, making it impossible to optimize the cooling and heating performance. Furthermore, using multiple four-way valves increases the cost and structural complexity of the air conditioning system. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. Therefore, one objective of this invention is to provide a multi-port valve. The multi-port valve designed according to this invention includes at least five valve ports and has at least a first state and a second state, thereby enabling air conditioning systems equipped with this multi-port valve to have diverse flow paths.

[0004] This utility model also proposes an air conditioning system having the above-mentioned multi-way valve.

[0005] This utility model also proposes an air conditioner having the above-mentioned air conditioning system.

[0006] The multi-port valve according to this utility model includes: a valve body, wherein the valve body has a valve cavity, and the valve body has multiple valve ports, including a first valve port, a second valve port, a third valve port, a fourth valve port, and a fifth valve port; and a valve core, wherein the valve core is movably disposed within the valve cavity so that the multi-port valve has a first state and a second state, wherein in both the first state and the second state, one valve port is closed; wherein in the first state, the first valve port and the fifth valve port are connected, the second valve port and the third valve port are connected, and the fourth valve port is closed; and in the second state, the first valve port and the second valve port are connected, the third valve port and the fourth valve port are connected, and the fifth valve port is closed.

[0007] The multi-port valve according to this utility model includes at least five valve ports. The multi-port valve has at least a first state and a second state, which makes the flow path of the air conditioning system equipped with the multi-port valve rich and diverse. It can optimize the performance of the air conditioning system in cooling and heating without increasing the cost and structural complexity of the air conditioning system.

[0008] According to some embodiments of the present invention, the first valve port, the second valve port, the third valve port, the fourth valve port and the fifth valve port are arranged sequentially at intervals along the circumferential direction of the axis of the valve body, and the valve core is rotatably disposed in the valve cavity; wherein in the first state and the second state, the two valve ports that are closed are adjacent; and / or in the first state, the two valve ports that are connected are adjacent; and / or in the second state, the two valve ports that are connected are adjacent.

[0009] According to some embodiments of the present invention, the multi-way valve has at least two communicating channels, and the valve port on the valve body can selectively communicate with one of the communicating channels or not communicate with the communicating channel; wherein the valve core has at least two communicating channels; or the valve core and the valve cavity together form at least two communicating spaces, and the communicating spaces form the communicating channels; or the valve core has at least one communicating channel, and the valve core and the valve cavity together form at least one communicating space, and the communicating space forms the communicating channels.

[0010] According to some embodiments of the present invention, the second valve port, the third valve port, the fourth valve port and the fifth valve port are arranged sequentially at intervals along the length direction of the valve body, and the valve core is movable along the length direction of the valve body; wherein in the first state and the second state, the two valve ports that are closed are adjacent; and / or in the first state, at least one set of connected valve ports are adjacent; and / or in the second state, at least one set of connected valve ports are adjacent.

[0011] According to some embodiments of the present invention, in the moving direction of the valve core, the interval between the third valve port and the fourth valve port is a first interval, the interval between the third valve port and the other valve ports excluding the fourth valve port is a second interval, and the interval between the fourth valve port and the other valve ports excluding the third valve port is a third interval, wherein the first interval is smaller than the second interval and the first interval is smaller than the third interval.

[0012] According to some embodiments of the present invention, the valve core and the valve body cooperate to define a first chamber and a second chamber. In the direction of movement of the valve core, the first chamber and the second chamber are located on both sides of the valve cavity so as to push the valve core to move by pressure difference.

[0013] According to some embodiments of the present invention, the valve core has a symmetrical structure in the direction of movement of the valve core.

[0014] According to some embodiments of the present invention, the valve cavity is provided with a drive structure suitable for driving the valve core to move on at least one side of the valve core in the direction of movement.

[0015] According to some embodiments of the present invention, the driving structure includes: a first magnetic element disposed on one side of the valve core in the direction of movement; a second magnetic element disposed on the inner wall of the valve cavity and opposite to the first magnetic element, the second magnetic element being adapted to electromagnetically engage with the first magnetic element; and an elastic element disposed between the first magnetic element and the second magnetic element and connected to both the first magnetic element and the second magnetic element respectively; wherein the electromagnetic force between the first magnetic element and the second magnetic element is adapted to change in order to drive the valve core to move.

[0016] According to some embodiments of this utility model, the valve core is used to divide the valve cavity into a third chamber and a fourth chamber along a first direction. The valve core is provided with a connecting hole, and the third chamber and the fourth chamber are connected through the connecting hole. The third chamber is provided with a first valve port, and the fourth chamber is provided with a second valve port to a fifth valve port. The valve core is provided with a second connecting channel and a third connecting channel. In the first state, the second connecting channel connects the second valve port and the third valve port, and the third connecting channel only connects with the fourth valve port. In the second state, the third connecting channel connects the third valve port and the fourth valve port, and the second connecting channel only connects with the fifth valve port. The first direction and the movement direction of the valve core intersect.

[0017] According to some embodiments of the present invention, the valve core includes a first sliding plate and a second sliding plate, the first sliding plate and the second sliding plate being spaced apart along the first direction to define a second communication channel, and the second sliding plate and the inner wall of the valve cavity defining the third communication channel.

[0018] According to some embodiments of this utility model, the valve core is provided with a fourth connecting channel and a fifth connecting channel. In the first state, the fourth connecting channel connects the first valve port and the fifth valve port, and the fifth connecting channel connects the second valve port and the third valve port, and the valve core blocks the fourth valve port. In the second state, the fourth connecting channel connects the first valve port and the second valve port, and the fifth connecting channel connects the third valve port and the fourth valve port, and the valve core blocks the fifth valve port.

[0019] According to some embodiments of the present invention, the valve core is used to divide the valve cavity into a third chamber and a fourth chamber along a first direction. The valve core is provided with a connecting hole, and the third chamber and the fourth chamber are connected through the connecting hole. The third chamber is provided with a first valve port, and the fourth chamber is provided with a second valve port to a fifth valve port. The valve core is provided with a first connecting channel. In the first state, the first connecting channel connects the second valve port and the third valve port. In the second state, the first connecting channel connects the third valve port and the fourth valve port. The first direction intersects with the moving direction of the valve core.

[0020] According to some embodiments of the present invention, in the first state, the valve core blocks the fourth valve port, and in the second state, the valve core blocks the fifth valve port.

[0021] The air conditioning system according to a second aspect embodiment of the present invention is briefly described below.

[0022] The air conditioning system according to this utility model includes: a compressor having an exhaust port and a return port; a multi-way valve, which is the multi-way valve described in any of the above embodiments, wherein a first valve port is connected to the exhaust port and a third valve port is connected to the return port; an indoor heat exchanger, wherein a first end of the indoor heat exchanger is connected to a second valve port; and an outdoor heat exchanger, wherein a first end of the outdoor heat exchanger is connected to a fourth valve port and a fifth valve port respectively, and a second end of the outdoor heat exchanger is connected to a second end of the indoor heat exchanger through a throttling element. Because the air conditioning system according to this utility model is equipped with the multi-way valve of the above embodiments, the flow paths of this air conditioning system are diverse.

[0023] According to some embodiments of the present invention, the outdoor heat exchanger includes multiple heat exchange branches, and the number of heat exchange branches connected in parallel in the first state is less than the number of heat exchange branches connected in parallel in the second state.

[0024] According to some embodiments of the present invention, the outdoor heat exchanger includes a first heat exchange module and a second heat exchange module. The first heat exchange module includes at least one heat exchange branch, and the second heat exchange module includes at least one heat exchange branch. The air conditioning system further includes a one-way valve, which is connected to the first heat exchange module and the second heat exchange module respectively. The one-way valve is unidirectionally open from the indoor heat exchanger to the first heat exchange module. In the first state, the first heat exchange module and the second heat exchange module are connected in series, and in the second state, the first heat exchange module and the second heat exchange module are connected in parallel.

[0025] According to some embodiments of the present invention, the number of heat exchange branches of the first heat exchange module is the same as the number of heat exchange branches of the second heat exchange module; or the number of heat exchange branches of the first heat exchange module is greater than the number of heat exchange branches of the second heat exchange module, and the plurality of heat exchange branches of the first heat exchange module are connected in parallel.

[0026] The air conditioner according to a third aspect embodiment of the present invention is briefly described below.

[0027] The air conditioner according to this utility model includes the air conditioning system described in any of the above embodiments. Since the air conditioner according to this utility model is equipped with the air conditioning system described in the above embodiments, the user experience of the air conditioner is better.

[0028] In summary, the multi-port valve according to this utility model includes at least five valve ports and has at least a first state and a second state. The multi-port valve has a variety of flow paths to optimize the performance of the air conditioning system during cooling and heating.

[0029] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0030] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0031] Figure 1 This is a cross-sectional schematic diagram of a multi-way valve according to the first embodiment of the present invention.

[0032] Figure 2 This is a flow diagram of the heat exchange medium in the air conditioning system when the multi-way valve is in the first state according to the first embodiment of this utility model.

[0033] Figure 3 This is a flow diagram of the heat exchange medium in the air conditioning system when the multi-way valve is in the second state according to the first embodiment of this utility model.

[0034] Figure 4 This is a cross-sectional schematic diagram of a multi-way valve according to the second embodiment of the present invention.

[0035] Figure 5 This is a flow diagram of the heat exchange medium in the air conditioning system when the multi-way valve is in the first state according to the second embodiment of this utility model.

[0036] Figure 6 This is a flow diagram of the heat exchange medium in the air conditioning system when the multi-way valve is in the second state according to the second embodiment of this utility model.

[0037] Figure 7This is a cross-sectional schematic diagram of a multi-way valve according to the third embodiment of the present invention.

[0038] Figure 8 This is a flow diagram of the heat exchange medium in the air conditioning system when the multi-way valve is in the first state according to the third embodiment of this utility model.

[0039] Figure 9 This is a flow diagram of the heat exchange medium in the air conditioning system when the multi-way valve is in the second state according to the third embodiment of this utility model.

[0040] Figure 10 This is a cross-sectional schematic diagram of a multi-way valve according to the fourth embodiment of the present utility model.

[0041] Figure 11 This is a flow diagram of the heat exchange medium in the air conditioning system when the multi-way valve is in the first state according to the fourth embodiment of this utility model.

[0042] Figure 12 This is a flow diagram of the heat exchange medium in the air conditioning system when the multi-way valve is in the second state according to the fourth embodiment of this utility model.

[0043] Figure 13 This is a cross-sectional schematic diagram of a multi-way valve according to the fifth embodiment of the present invention.

[0044] Figure 14 This is a flow diagram of the heat exchange medium in the air conditioning system when the multi-way valve is in the first state according to the fifth embodiment of this utility model.

[0045] Figure 15 This is a flow diagram of the heat exchange medium in the air conditioning system when the multi-way valve is in the second state according to the fifth embodiment of this utility model.

[0046] Figure 16 This is a cross-sectional schematic diagram of a multi-way valve according to the sixth embodiment of the present invention.

[0047] Figure 17 This is a flow diagram of the heat exchange medium in the air conditioning system when the multi-way valve is in the first state according to the sixth embodiment of this utility model.

[0048] Figure 18 This is a flow diagram of the heat exchange medium in an air conditioning system when the multi-way valve is in the second state according to the sixth embodiment of this utility model.

[0049] Figure 19 This is a schematic diagram of the air conditioner structure according to an embodiment of the present utility model.

[0050] Figure label:

[0051] 1000, Air conditioning system; 10000, Air conditioner;

[0052] 1. Multi-way valve;

[0053] 10. Valve body; 10a. Valve chamber; 101a. Third chamber; 102a. Fourth chamber; 10b. First chamber; 10c. Second chamber; 10d. Communicating space; 10e. Communicating channel; 10f. Cut-off space;

[0054] 11. First valve port; 12. Second valve port; 13. Third valve port; d1. First spacing; d2. Second spacing; 14. Fourth valve port; d3. Third spacing; 15. Fifth valve port;

[0055] 20. Valve core; 20a. Connecting hole; 20b. First connecting channel; 20c. Second connecting channel; 20d. Third connecting channel; 20e. Fourth connecting channel; 20f. Fifth connecting channel;

[0056] 21. First slide plate; 22. Second slide plate; 201. Spacer plate; 202. Connecting plate; 203. Sliding plate; 2031. Bending part; 2032. Enclosing part; 2033. Hole;

[0057] 31. First magnetic component; 32. Second magnetic component; 33. Elastic component; 34. Coil;

[0058] 2. Compressor; 2a. Exhaust port; 2b. Return port;

[0059] 3. Indoor heat exchanger; 3a. First end; 3b. Second end; 4. Outdoor heat exchanger; 4b. Second end;

[0060] 5. Throttling element; 6. Check valve. Detailed Implementation

[0061] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0062] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0063] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0064] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0065] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0066] In related technologies, air conditioning systems are equipped with heat exchangers to exchange heat with the outside environment. Some existing technologies incorporate four-way valves in air conditioning systems. These valves create a pressure differential, causing a slider within the valve to move and alter the flow path, thus adjusting the flow path within the system. However, air conditioning systems with four-way valves have a single flow path, making it impossible to optimize the cooling and heating performance. Furthermore, using multiple four-way valves increases the cost and structural complexity of the air conditioning system.

[0067] The following is for reference. Figures 1-18 A multi-way valve 1 according to an embodiment of the present utility model is described.

[0068] like Figure 1 , Figure 4 , Figure 7 , Figure 10 , Figure 13 , Figure 16As shown, the multi-port valve 1 according to this utility model includes: a valve body 10 and a valve core 20. The valve body 10 has a valve cavity 10a and multiple valve ports, including a first valve port 11, a second valve port 12, a third valve port 13, a fourth valve port 14, and a fifth valve port 15. The valve core 20 is movably disposed in the valve cavity 10a so that the multi-port valve 1 has a first state and a second state. In both the first and second states, one valve port of the multi-port valve is closed. In the first state, the first valve port 11 is connected to the fifth valve port 15, the second valve port 12 is connected to the third valve port 13, and the fourth valve port 14 is closed. In the second state, the first valve port 11 is connected to the second valve port 12, the third valve port 13 is connected to the fourth valve port 14, and the fifth valve port 15 is closed.

[0069] Specifically, the multi-way valve 1 includes at least five valve ports, and in this case, the multi-way valve 1 can be a five-way valve. The valve core 20 is adapted to move within the valve cavity 10a to switch the connection relationship of each valve port. In some embodiments, the valve core 20 can rotate within the valve cavity 10a, as can be seen in reference... Figure 10 , Figure 13 The valve core 20 rotates to switch the connection relationship of each valve port, so that the multi-way valve 1 has at least a first state and a second state; in other embodiments, the valve core 20 can also move within the valve cavity 10a, as can be seen in the following reference. Figure 1 , Figure 4 , Figure 7 , Figure 16 The valve core 20 is translated to switch the connection relationship of each valve port, so that the multi-way valve 1 has at least a first state and a second state. Also, the aforementioned shut-off of the fourth valve port 14 means that the fourth valve port 14 is not connected to other valve ports; similarly, the aforementioned shut-off of the fifth valve port 15 means that the fifth valve port 15 is not connected to other valve ports.

[0070] More specifically, in the first state, the first valve port 11 is connected to the fifth valve port 15, the second valve port 12 and the third valve port 13 are connected, and the fourth valve port 14 is closed. In this state, the medium flowing through the multi-way valve 1 can flow between the first valve port 11 and the fifth valve port 15, or the medium flowing through the multi-way valve 1 can flow between the second valve port 12 and the third valve port 13, while no medium flows through the fourth valve port 14. In the second state, the first valve port 11 and the second valve port 12 are connected, the third valve port 13 and the fourth valve port 14 are connected, and the fifth valve port 15 is closed. In this state, the medium flowing through the multi-way valve 1 can flow between the first valve port 11 and the second valve port 12, or the medium flowing through the multi-way valve 1 can flow between the third valve port 13 and the fourth valve port 14, while no medium flows through the fifth valve port 15.

[0071] The multi-port valve 1 according to this utility model includes at least five valve ports. The multi-port valve 1 has at least a first state and a second state, which makes the flow path of the air conditioning system 1000 equipped with the multi-port valve 1 rich and diverse. It can optimize the performance of the air conditioning system 1000 in cooling and heating without increasing the cost and structural complexity of the air conditioning system 1000.

[0072] In existing technologies, four-way valves have a slow response speed, which affects the heat exchange speed of air conditioning systems.

[0073] According to some embodiments of the present invention, the first valve port 11, the second valve port 12, the third valve port 13, the fourth valve port 14 and the fifth valve port 15 are arranged sequentially at intervals along the circumferential direction of the axis of the valve body 10, and the valve core 20 is rotatably disposed in the valve cavity 10a; wherein in the first state and the second state, the two valve ports that are closed are adjacent; and / or in the first state, the two valve ports that are connected are adjacent; and / or in the second state, the two valve ports that are connected are adjacent.

[0074] For specific details, please refer to Figure 10 , Figure 13 The valve cavity 10a can be constructed in a shape that is approximately spherical, cylindrical, or other shape that allows the valve core 20 to rotate within the valve cavity 10a.

[0075] The multi-way valve 1 has at least two connecting channels, and the valve port on the valve body 10 can selectively connect to one of the connecting channels or not connect to the connecting channels; wherein, the valve core 20 has at least two connecting channels, or the valve core 20 and the valve cavity 10a together form at least two connecting spaces, and the connecting spaces form connecting channels, or the valve core 20 has at least one connecting channel and the valve core 20 and the valve cavity 10a together form at least one connecting space, and the connecting space forms a connecting channel.

[0076] When the valve core 20 and valve cavity 10a are connected to two valve ports that need to be connected, please refer to... Figure 10 A portion of the valve core 20 is spaced from the inner wall of the valve cavity 10a so that the outer surface of the portion of the valve core 20 and the inner wall of the valve cavity 10a together define a communication space 10d. The communication space 10d is connected to two valve ports that need to be connected; or, refer to Figure 13 The valve core 20 itself has a through-connected communication channel 10e. One end of the communication channel 10e is connected to one of the two valve ports that need to be connected, and the other end of the communication channel 10e is connected to the other of the two valve ports that need to be connected, thereby connecting the two valve ports that need to be connected.

[0077] When valve core 20 and valve chamber 10a are shut off at the valve port that needs to be shut off, please refer to... Figure 10A portion of the valve core 20 is spaced from the inner wall of the valve cavity 10a so that the outer surface of the portion of the valve core 20 and the inner wall of the valve cavity 10a together define a shut-off space 10f, which communicates only with the valve port that needs to be shut off; or, refer to Figure 13 A portion of the outer wall surface of the valve core 20 contacts the inner wall of the valve cavity 10a, and the valve port that needs to be shut off is directly opposite this portion of the outer wall surface of the valve core 20.

[0078] More specifically, the first valve port 11, the second valve port 12, the third valve port 13, the fourth valve port 14, and the fifth valve port 15 are arranged sequentially and spaced apart along the circumferential direction of the axis of the valve body 10. At this time, the first valve port 11, the second valve port 12, the third valve port 13, the fourth valve port 14, and the fifth valve port 15 are also arranged sequentially and spaced apart along the circumferential direction of the axis of the valve core 20. When the valve body 10 and the valve core 20 rotate relative to each other, the connection relationship of each valve port will change.

[0079] For example, in the first state, the first valve port 11 is connected to the fifth valve port 15, the second valve port 12 is connected to the third valve port 13, and the fourth valve port 14 is closed; in the second state, the first valve port 11 and the second valve port 12 are connected, the third valve port 13 and the fourth valve port 14 are connected, and the fifth valve port 15 is closed.

[0080] Furthermore, the valve port that is closed in the first state is adjacent to the valve port that is closed in the second state, so that the valve body 10 and the valve core 20 only need to rotate relatively by a small amount to switch between the first state and the second state. This makes the stroke required for the valve core 20 to move short and the friction force less when the multi-way valve 1 switches between the first state and the second state, and the response speed of the multi-way valve 1 is faster. In some embodiments, in the first state, the first valve port 11 and the fifth valve port 15 are adjacent and the second valve port 12 and the third valve port 13 are adjacent; in some embodiments, in the second state, the first valve port 11 and the second valve port 12 are adjacent and the third valve port 13 and the fourth valve port 14 are adjacent. In other words, the first valve port 11, the second valve port 12, the third valve port 13, the fourth valve port 14, and the fifth valve port 15 can be arranged sequentially and orderly along the circumferential direction of the valve body 10. In the first state, the first valve port 11 is connected to the fifth valve port 15, the second valve port 12 is connected to the third valve port 13, and the fourth valve port 14 is closed. When the valve body 10 and the valve core 20 rotate relative to each other to switch from the first state to the second state, the connection relationship of each valve port will change, switching to the first valve port 11 and the second valve port 12 being connected, the third valve port 13 and the fourth valve port 14 being connected, and the fifth valve port 15 being closed. The valve ports that the multi-way valve 1 needs to connect are arranged adjacent to each other so that the valve body 10 and the valve core 20 can switch between the first state and the second state, so that the air conditioning system 1000 equipped with the multi-way valve 1 can respond in a timely manner to quickly cool or heat according to actual needs.

[0081] In such Figures 10-12In the specific embodiment shown, the first valve port 11, the second valve port 12, the third valve port 13, the fourth valve port 14 and the fifth valve port 15 are arranged sequentially and orderly along the circumference of the axis of the valve body 10, and the spacing between any two adjacent valve ports is the same. The angle between the center line of any two adjacent valve ports and the line connecting the axis of the valve body 10 is B°, and the angle B° between the center line of any two adjacent valve ports and the line connecting the axis of the valve body 10 is the same. Furthermore, a portion of the valve core 20 is spaced from the inner wall of the valve cavity 10a so that the outer surface of the portion of the valve core 20 and the inner wall of the valve cavity 10a together define two communicating spaces 10d and one shut-off space 10f. One communicating space 10d is adapted to connect the first valve port 11 and the fifth valve port 15 in a first state and is adapted to connect the first valve port 11 and the second valve port 12 in a second state. The other communicating space 10d is adapted to connect the second valve port 12 and the third valve port 13 in a first state and is adapted to connect the third valve port 13 and the fourth valve port 14 in a second state. The shut-off space 10f is adapted to connect with the fourth valve port 14 in a first state to shut off the fourth valve port 14 and is adapted to connect with the fifth valve port 15 in a second state to shut off the fifth valve port 15.

[0082] In such Figures 13-15 In the specific embodiment shown, the first valve port 11, the second valve port 12, the third valve port 13, the fourth valve port 14, and the fifth valve port 15 are arranged sequentially and orderly along the circumferential direction of the axis of the valve body 10. The distance between the first valve port 11 and the second valve port 12, the distance between the second valve port 12 and the third valve port 13, the distance between the third valve port 13 and the fourth valve port 14, and the distance between the fourth valve port 14 and the fifth valve port 15 are the same. The angle between the center line of two adjacent valve ports and the line connecting them to the axis of the valve body 10 is A°, and the angle A° between the center line of any two adjacent valve ports and the line connecting them to the axis of the valve body 10 is the same. The distance between the first valve port 11 and the fifth valve port 15 is greater than the distance between the other adjacent valve ports. Furthermore, a portion of the valve core 20 is spaced from the inner wall of the valve cavity 10a so that the outer surface of the portion of the valve core 20 and the inner wall of the valve cavity 10a together define three communicating spaces 10d. The first communicating space 10d is adapted to connect the second valve port 12 and the third valve port 13 in the first state; the second communicating space 10d is adapted to connect the third valve port 13 and the fourth valve port 14 in the second state; and the third communicating space 10d is adapted to connect the first valve port 11 and the second valve port 12 in the second state. The valve core 20 itself also forms a through-type communicating channel 10e. One end of the communicating channel 10e is connected to the first valve port 11, and the other end of the communicating channel 10e is connected to the fifth valve port 15, thereby connecting the first valve port 11 and the fifth valve port 15. In the first state, the fourth valve port 14 contacts the outer wall surface of the valve core 20 that contacts the inner wall of the valve cavity 10a to achieve a shut-off. In the second state, the fifth valve port 15 contacts the outer wall surface of the valve core 20 that contacts the inner wall of the valve cavity 10a to achieve a shut-off.

[0083] According to some embodiments of this utility model, the second valve port 12, the third valve port 13, the fourth valve port 14, and the fifth valve port 15 are sequentially spaced along the length direction of the valve body 10, and the valve core 20 is movable along the length direction of the valve body 10; wherein in the first state and the second state, the two closed valve ports are adjacent; and / or in the first state, at least one set of connected valve ports are adjacent; and / or in the second state, at least one set of connected valve ports are adjacent. Specifically, refer to... Figures 1-3 , Figures 4-6 , Figures 7-9 , Figures 16-18 The valve core 20 is movable within the valve cavity 10a. The valve core 20 translates to switch the connection relationship of each valve port, ensuring that the multi-way valve 1 has at least a first state and a second state. The second valve port 12, third valve port 13, fourth valve port 14, and fifth valve port 15 are sequentially spaced along the length of the valve body 10. In some embodiments, the length of the valve body 10 is parallel to the... Figure 1 The first direction is orthogonal, and the first valve port 11 and the second valve port 12 to the fifth valve port 15 can be located on both sides of the valve body 10 in the first direction or on the same side of the valve body 10 in the first direction. When the valve body 10 and the valve core 20 move relative to each other, the connection relationship of each valve port will change.

[0084] For example, in the first state, the first valve port 11 is connected to the fifth valve port 15, the second valve port 12 is connected to the third valve port 13, and the fourth valve port 14 is closed; in the second state, the first valve port 11 and the second valve port 12 are connected, the third valve port 13 and the fourth valve port 14 are connected, and the fifth valve port 15 is closed.

[0085] Furthermore, the valve port that is closed in the first state is adjacent to the valve port that is closed in the second state, so that the valve body 10 and the valve core 20 only need to move relatively slightly to switch between the first state and the second state. This makes the stroke required for the valve core 20 to move short and the friction force less when the multi-way valve 1 switches between the first state and the second state, and the response speed of the multi-way valve 1 is faster.

[0086] In some embodiments, in a first state, the first valve port 11 and the fifth valve port 15 are adjacent and / or the second valve port 12 and the third valve port 13 are adjacent; in some embodiments, in a second state, the first valve port 11 and the second valve port 12 are adjacent and / or the third valve port 13 and the fourth valve port 14 are adjacent. That is, the second valve port 12, the third valve port 13, the fourth valve port 14 and the fifth valve port 15 can be arranged sequentially and orderly at intervals along the length direction of the valve body 10. In the first state, the first valve port 11 and the fifth valve port 15 are connected, the second valve port 12 and the third valve port 13 are connected, and the fourth valve port 14 is closed. When the valve body 10 and the valve core 20 move relative to each other to switch from the first state to the second state, the connection relationship of each valve port will change, and switch to the first valve port 11 and the second valve port 12 being connected, the third valve port 13 and the fourth valve port 14 being connected, and the fifth valve port 15 being closed. The valve port that the multi-way valve 1 needs to connect is set close to the valve port so that the valve body 10 and the valve core 20 can switch between the first state and the second state, so that the air conditioning system 1000 equipped with the multi-way valve 1 can respond in time to quickly cool or heat according to actual needs.

[0087] According to some embodiments of this utility model, in the moving direction of the valve core 20, the interval between the third valve port 13 and the fourth valve port 14 is a first interval d1, the interval between the third valve port 13 and the other valve ports excluding the fourth valve port 14 is a second interval d2, and the interval between the fourth valve port 14 and the other valve ports excluding the third valve port 13 is a third interval d3. The first interval d1 is smaller than the second interval d2 and the third interval d3. Specifically, the movement of the valve core 20 can switch the connection relationship between the third valve port 13 and the fourth valve port 14, which can be referred to... Figure 1 , Figure 1 The distance between the third valve port 13 and the second valve port 12 is used as a reference for the second distance d2. In reality, the second distance d2 can also be the distance between the third valve port 13 and the fifth valve port 15 or the first valve port 11. Figure 1The distance between the fourth valve port 14 and the fifth valve port 15 is used as a reference for the third distance d3. In reality, the third distance d3 can also be the distance between the fourth valve port 14 and the second valve port 12 or the first valve port 11. In the moving direction of the valve core 20, the interval between the third valve port 13 and the fourth valve port 14 is the first distance d1, the distance between the third valve port 13 and the other valve ports excluding the fourth valve port 14 is the second distance d2, and the distance between the fourth valve port 14 and the other valve ports excluding the third valve port 13 is the third distance d3. The first distance d1 is smaller than the second distance d2 and smaller than the third distance d3, which makes the distance between the third valve port 13 and the fourth valve port 14 smaller. This results in a shorter stroke required for the valve core 20 to move, which can reduce the friction force on the valve core 20 and speed up the response speed of the multi-way valve 1 when switching between the first and second states. Furthermore, when the multi-way valve 1 switches between the first and second states, the valve core 20 needs to move a shorter stroke and experiences less friction. As a result, the multi-way valve 1 can switch between the first and second states more quickly, enabling the air conditioning system 1000 equipped with the multi-way valve 1 to respond promptly and quickly cool or heat according to actual needs.

[0088] According to some embodiments of this utility model, such as Figure 1 , Figure 4 As shown, the valve core 20 and valve body 10 cooperate to define a first chamber 10b and a second chamber 10c. In the direction of movement of the valve core 20, the first chamber 10b and the second chamber 10c are located on opposite sides of the valve cavity 10a to push the valve core 20 to move through a pressure difference. Here, the first chamber 10b and the second chamber 10c are suitable for the flow of pressure medium, and both the first chamber 10b and the second chamber 10c are spaced apart from the valve cavity 10a. The first chamber 10b and the second chamber 10c are either connected to each other or connected to external pressure medium flow paths, allowing the pressure medium to flow to the first chamber 10b or to the second chamber 10c. This creates a pressure difference between the first chamber 10b and the second chamber 10c, allowing the valve core 20 to move within the valve body 10 to switch between different states of the multi-way valve 1.

[0089] In some embodiments, such as Figure 1 As shown, the valve core 20 includes a spacer plate 201. The spacer plate 201 is constructed as two separate spacers, namely a first spacer plate and a second spacer plate. The first spacer plate and the second spacer plate are spaced apart in the moving direction of the valve core 20. The surface of the first spacer plate facing away from the second spacer plate and the inner wall of the valve body 10 together define a first chamber 10b. The surface of the second spacer plate facing away from the first spacer plate and the inner wall of the valve body 10 together define a second chamber 10c.

[0090] In some embodiments, such as Figure 1As shown, the valve core 20 also includes a connecting plate 202, which is connected to the first partition plate and the second partition plate respectively. When the pressure medium in the second chamber 10c expands, the second partition plate can push the first partition plate to move through the connecting plate 202 to compress the pressure medium in the first chamber 10b. Or when the pressure medium in the first chamber 10b expands, the first partition plate can push the second partition plate to move through the connecting plate 202 to compress the pressure medium in the second chamber 10c.

[0091] In some embodiments, such as Figure 1 As shown, the valve core 20 also includes a sliding plate 203, which is connected to the connecting plate 202. When a pressure difference occurs between the first chamber 10b and the second chamber 10c, the connecting plate 202 can be moved, and the connecting plate 202 can move the sliding plate 203 to selectively connect the first valve port 11 with the fifth valve port 15, the first valve port 11 with the second valve port 12, the second valve port 12 with the third valve port 13, and the third valve port 13 with the fourth valve port 14. It can also selectively shut off the fourth valve port 14 and the fifth valve port 15.

[0092] Furthermore, such as Figure 1 As shown, the sliding plate 203 extends in the moving direction of the valve core 20 and includes a closed portion 2032 and a bent portion 2031 connected to each other. The closed portion 2032 contacts a portion of the inner wall surface of the valve body 10 and is adapted to cover the fourth valve port 14 or the fifth valve port 15 to selectively shut off the fourth valve port 14 or the fifth valve port 15. The bent portion 2031 is spaced apart from a portion of the inner wall surface of the valve body 10 to define a first communication channel 20b. The sliding plate 203 moves to connect the first communication channel 20b with the first valve port 11 and the fifth valve port 15, or connect the first communication channel 20b with the first valve port 11 and the second valve port 12, or connect the first communication channel 20b with the second valve port 12 and the third valve port 13, or connect the first communication channel 20b with the third valve port 13 and the fourth valve port 14, thereby enabling the multi-way valve 1 to switch between a first state and a second state.

[0093] Alternatively, in some other embodiments, the sliding plate 203 may not be able to cut off the fourth valve port 14 or the fifth valve port 15 through the closing part 2032. Alternatively, the sliding plate 203 may be provided with a one-way cut-off channel, which can be moved when the sliding plate 203 moves, thereby selectively cutting off the connection between the fourth valve port 14 or the fifth valve port 15 and other valve ports.

[0094] According to some embodiments of this utility model, such as Figure 1 , Figure 4 , Figure 7As shown, the valve core 20 has a symmetrical structure in the direction of movement. That is, there are two sealing parts 2032, which are located at the two ends of the curved part 2031 in the direction of movement of the valve core 20. Here, the sealing parts 2032 are adapted to contact a part of the inner wall surface of the valve body 10. When the valve core 20 moves, the sealing parts 2032 move relative to the valve body 10 and rub against a part of the inner wall surface of the valve body 10. The valve core 20 is designed as a symmetrical structure so that the two sealing parts 2032 are subjected to uniform force and the friction is the same, which can further accelerate the response speed of the multi-way valve 1 in switching between the first state and the second state.

[0095] According to some embodiments of this utility model, such as Figures 1-3 , Figures 4-6 , Figures 7-9 , Figures 16-18 As shown, the valve cavity 10a is provided with a drive structure suitable for driving the valve core 20 to move on at least one side of the valve core 20 in the moving direction, so as to drive the valve core 20 to move.

[0096] Furthermore, such as Figure 16 As shown, the driving structure includes a first magnetic element 31, a second magnetic element 32, and an elastic element 33. The first magnetic element 31 is disposed on one side of the valve core 20 in the moving direction; the second magnetic element 32 is disposed on the inner wall of the valve cavity 10a and opposite to the first magnetic element 31, and the second magnetic element 32 is adapted to electromagnetically engage with the first magnetic element 31; the elastic element 33 is disposed between the first magnetic element 31 and the second magnetic element 32 and is connected to both the first magnetic element 31 and the second magnetic element 32 respectively; wherein the electromagnetic force between the first magnetic element 31 and the second magnetic element 32 is adaptable to change, so as to drive the valve core 20 to move. Figures 16-18 In the specific embodiment shown, a coil 34 is also provided on the valve body 10. The coil 34 is energized to generate a magnetic field. By changing the magnitude of the magnetic field, the magnitude of the electromagnetic force between the first magnetic element 31 and the second magnetic element 32 can be changed, thereby changing the deformation of the elastic element 33. When the electromagnetic force between the first magnetic element 31 and the second magnetic element 32 increases, the elastic element 33 contracts, driving the valve core 20 to move toward the direction where the second magnetic element 32 is provided. When the electromagnetic force between the first magnetic element 31 and the second magnetic element 32 decreases, the elastic element 33 extends, pushing the valve core 20 to move away from the second magnetic element 32.

[0097] In some embodiments, the elastic element 33 is a spring.

[0098] According to some embodiments of this utility model, such as Figure 1As shown, the valve core 20 is used to divide the valve chamber 10a into a third chamber 101a and a fourth chamber 102a along a first direction. The valve core 20 is provided with a connecting hole 20a, through which the third chamber 101a and the fourth chamber 102a are connected. The third chamber 101a is provided with a first valve port 11, and the fourth chamber 102a is provided with a second valve port 12 to a fifth valve port 15. The valve core 20 is provided with a first connecting channel 20b. In a first state, the first connecting channel 20b connects the second valve port 12 and the third valve port 13. In a second state, the first connecting channel 20b connects the third valve port 13 and the fourth valve port 14. The first direction intersects with the moving direction of the valve core 20. Specifically, the first valve port 11 and the second to fifth valve ports 12 to 15 are located on both sides of the valve body 10 in the first direction, and the second to fifth valve ports 12 to 15 are spaced apart in the moving direction of the valve core 20. The valve core 20 divides the valve cavity 10a inside the valve body 10 into a third chamber 101a and a fourth chamber 102a in the first direction. The third chamber 101a and the fourth chamber 102a are connected through a connecting hole 20a. The first valve port 11 is connected to the third chamber 101a, and the second to fifth valve ports 12 to 15 are connected to the fourth chamber 102a. The valve core 20 moves to switch the connection relationship of each valve port.

[0099] More specifically, the first communication channel 20b provided within the valve core 20 can connect the second valve port 12 and the third valve port 13 in a first state, and can also connect the third valve port 13 and the fourth valve port 14 in a second state. In some embodiments, as described above, the sliding plate 203 of the valve core 20 includes a bent portion 2031, which is spaced apart from a portion of the inner wall surface of the valve body 10 to define the first communication channel 20b. The sliding plate 203 moves to connect the first communication channel 20b with the second valve port 12 and the third valve port 13, placing the multi-way valve 1 in the first state, or to connect the first communication channel 20b with the third valve port 13 and the fourth valve port 14, placing the multi-way valve 1 in the second state, thereby enabling the multi-way valve 1 to switch between the first state and the second state.

[0100] In some embodiments, a connecting plate 202 of the valve core 20 is provided with a connecting hole 20a.

[0101] According to some embodiments of this utility model, in a first state, the valve core 20 blocks the fourth valve port 14, and in a second state, the valve core 20 blocks the fifth valve port 15. That is, the sealing portion 2032 of the valve core 20 contacts a portion of the inner wall surface of the valve body 10, and is adapted to block the fourth valve port 14 in the first state to shut off the fourth valve port 14. (See reference...) Figure 2 And it is suitable for sealing the fifth valve port 15 in the second state to shut off the fifth valve port 15, as can be referred to. Figure 3 .

[0102] According to some embodiments of the present invention, the valve core 20 is used to divide the valve chamber 10a into a third chamber 101a and a fourth chamber 102a along a first direction. The valve core 20 is provided with a connecting hole 20a, through which the third chamber 101a and the fourth chamber 102a are connected. The third chamber 101a is provided with a first valve port 11, and the fourth chamber 102a is provided with a second valve port 12 to a fifth valve port 15. The valve core 20 is provided with a second connecting channel 20c and a third connecting channel 20d, such as... Figure 5 As shown, in the first state, the second connecting channel 20c connects the second valve port 12 and the third valve port 13, and the third connecting channel 20d connects only to the fourth valve port 14; as Figure 6 As shown, in the second state, the third connecting channel 20d connects the third valve port 13 and the fourth valve port 14, and the second connecting channel 20c connects only to the fifth valve port 15. The first direction intersects with the moving direction of the valve core 20. Specifically, as described above, the first valve port 11 and the second to fifth valve ports 12 to 15 are located on both sides of the valve body 10 in the first direction, and the second to fifth valve ports 12 to 15 are spaced apart in the moving direction of the valve core 20. The valve core 20 divides the valve cavity 10a inside the valve body 10 into a third chamber 101a and a fourth chamber 102a in the first direction. The third chamber 101a and the fourth chamber 102a are connected through the connecting hole 20a, and the first valve port 11 is connected to the third chamber 101a, while the second to fifth valve ports 12 to 15 are connected to the fourth chamber 102a. The valve core 20 moves to switch the connection relationship of each valve port.

[0103] More specifically, the second connecting channel 20c and the third connecting channel 20d are isolated, meaning they are not connected. The second connecting channel 20c within the valve core 20 can connect the second valve port 12 and the third valve port 13 in the first state, and only connect to the fifth valve port 15 in the second state. Conversely, the third connecting channel 20d within the valve core 20 can connect only to the fourth valve port 14 in the first state, and connect the third valve port 13 and the fourth valve port 14 in the second state.

[0104] According to some embodiments of this utility model, such as Figure 4 As shown, the valve core 20 includes a first sliding plate 21 and a second sliding plate 22. The first sliding plate 21 and the second sliding plate 22 are spaced apart along a first direction to define a second communicating channel 20c. The second sliding plate 22 and the inner wall of the valve cavity 10a define a third communicating channel 20d. Here, as mentioned above, the sliding plate 203 can be constructed as multiple plates, which are the first sliding plate 21 and the second sliding plate 22, respectively. The first sliding plate 21 and the second sliding plate 22 are spaced apart along the first direction to make full use of the space of the valve cavity 10a in the first direction and to reduce the length of the connecting plate 202, thus making reasonable use of the internal space of the valve cavity 10a.

[0105] In some embodiments, such as Figure 4 As shown, the first slide plate 21 and the second slide plate 22 are connected at both ends in the valve core moving direction, and the middle portions of the first slide plate 21 and the second slide plate 22 are spaced apart to define a second communication channel 20c. Furthermore, both ends of the second slide plate 22 are adapted to contact the inner wall of the valve cavity 10a, and each end of the second slide plate 22 has a hole 2033, which is adapted to connect the second communication channel 20c to at least one valve port when the second slide plate 22 moves. In a first state, the second communication channel 20c can connect the second valve port 12 and the third valve port 13. In a second state, the second communication channel 20c only connects to the fifth valve port 15.

[0106] In some embodiments, a connecting plate 202 of the valve core 20 is provided with a connecting hole 20a.

[0107] According to some embodiments of this utility model, the valve core 20 is provided with a fourth connecting channel 20e and a fifth connecting channel 20f. In a first state, the fourth connecting channel 20e connects the first valve port 11 and the fifth valve port 15, the fifth connecting channel 20f connects the second valve port 12 and the third valve port 13, and the valve core 20 blocks the fourth valve port 14. In a second state, the fourth connecting channel 20e connects the first valve port 11 and the second valve port 12, the fifth connecting channel 20f connects the third valve port 13 and the fourth valve port 14, and the valve core 20 blocks the fifth valve port 15. Specifically, the first valve port 11 to the fifth valve port 15 are located on the same side of the valve body 10 in the first direction, and the first valve port 11 to the fifth valve port 15 are spaced apart in the moving direction of the valve core 20. At this time, the medium flowing through the multi-way valve 1 only flows through the fourth connecting channel 20e and the fifth connecting channel 20f. The valve core 20 has a fourth communication channel 20e and a fifth communication channel 20f. The orifice 2033 is adapted to connect the second communication channel 20c with at least one valve port when the second slide plate 22 moves. The valve core 20 moves to adapt to changing the communication relationship between each valve port and the fourth communication channel 20e and the fifth communication channel 20f.

[0108] More specifically, the fourth connecting channel 20e and the fifth connecting channel 20f are isolated, meaning they are not connected. The fourth connecting channel 20e within the valve core 20 can connect the first valve port 11 and the fifth valve port 15 in the first state, as can be seen from [reference needed]. Figure 8 And in the second state, the first valve port 11 and the second valve port 12 are connected, as can be referred to. Figure 9 The fifth connecting channel 20f within the valve core 20 can connect the second valve port 12 and the third valve port 13 in the first state, as can be seen from [reference needed]. Figure 8 In the second state, the third valve port 13 and the fourth valve port 14 are connected, as can be seen from [reference needed]. Figure 9 .

[0109] In some embodiments, as described above, the sliding plate 203 can be configured as a plurality of plates, namely a first sliding plate 21 and a second sliding plate 22. The first sliding plate 21 and the second sliding plate 22 are spaced apart along a first direction to define a fourth communication channel 20e. The second sliding plate 22 and the inner wall of the valve cavity 10a define a fifth communication channel 20f. Further, the two ends of the first sliding plate 21 and the second sliding plate 22 are respectively connected in the valve core movement direction, and the middle portions of the first sliding plate 21 and the second sliding plate 22 are spaced apart to define the fourth communication channel 20e. And the two ends of the second sliding plate 22 are adapted to contact the inner wall of the valve cavity 10a, and the two ends of the second sliding plate 22 are respectively formed with holes 2033, which are adapted to connect the fourth communication channel 20e to at least one valve port when the second sliding plate 22 moves. In a first state, the fourth communication channel 20e can connect the first valve port 11 and the fifth valve port 15. In a second state, the fourth communication channel 20e connects the first valve port 11 and the second valve port 12.

[0110] The following is a brief description of the air conditioning system 1000 according to this utility model.

[0111] like Figure 2 As shown, the air conditioning system 1000 according to this utility model includes: a compressor 2, a multi-way valve 1, an indoor heat exchanger 3, and an outdoor heat exchanger 4. The compressor 2 has an exhaust port 2a and a return port 2b. The multi-way valve 1 is the multi-way valve 1 described in any of the above embodiments, with a first valve port 11 connected to the exhaust port 2a and a third valve port 13 connected to the return port 2b. The first end 3a of the indoor heat exchanger 3 is connected to the second valve port 12. The first end of the outdoor heat exchanger 4 is connected to the fourth valve port 14 and the fifth valve port 15 respectively, and the second end 4b of the outdoor heat exchanger 4 is connected to the second end 3b of the indoor heat exchanger 3 through a throttling element 5. Specifically, the return port 2b of the compressor 2 is used to draw in low-temperature, low-pressure gaseous heat exchange medium, while the exhaust port 2a is used to discharge high-temperature, high-pressure gaseous heat exchange medium. The heat exchange medium discharged from the exhaust port 2a enters the multi-way valve 1 through the first valve port 11, and flows out of the multi-way valve 1 through the fifth valve port 15 in the first state, or flows out of the multi-way valve 1 through the second valve port 12 in the second state.

[0112] More specifically, the air conditioning system 1000 equipped with the aforementioned multi-way valve 1 has multiple flow paths.

[0113] When the multi-way valve 1 is in the first state, such as Figure 2 , Figure 5 , Figure 8As shown, the valve core 20 moves to connect the first valve port 11 with the fifth valve port 15, the second valve port 12 with the third valve port 13, and the fourth valve port 14 is closed. At this time, the air conditioning system 1000 can be in cooling mode. The compressor 2 discharges the high-temperature and high-pressure gaseous heat exchange medium through the exhaust port 2a to the multi-way valve 1. This part of the high-temperature and high-pressure gaseous heat exchange medium enters the multi-way valve 1 through the first valve port 11 and flows out of the multi-way valve 1 through the fifth valve port 15. Then, this part of the high-temperature and high-pressure gaseous heat exchange medium enters the outdoor heat exchanger 4 through the first end of the outdoor heat exchanger 4, so as to... The medium exchanges heat with the outdoor heat exchanger 4. After heat exchange, the medium flows from the second end 4b of the outdoor heat exchanger 4 toward the throttling element 5 and enters the indoor heat exchanger 3 through the second end 3b of the indoor heat exchanger 3 to exchange heat with the indoor heat exchanger 3. This part of the heat exchange medium flows from the first end 3a of the indoor heat exchanger 3 toward the second valve port 12 of the multi-way valve 1 and enters the multi-way valve 1 through the second valve port 12. Then it flows out of the multi-way valve 1 through the third valve port 13 of the multi-way valve 1 and flows toward the return port 2b of the compressor 2, thereby entering the compressor 2 for further compression.

[0114] Understandably, when the air conditioning system 1000 is in cooling mode, the indoor heat exchanger 3 is responsible for absorbing indoor heat (heat absorption through evaporation of the heat exchange medium), thus cooling the indoor air. In this mode, the indoor heat exchanger 3 acts as an evaporator. The outdoor heat exchanger 4 is responsible for releasing heat to the outside (heat release through condensation of the heat exchange medium), which is dissipated through the outdoor unit fan. In this mode, the outdoor heat exchanger 4 acts as a condenser.

[0115] When multi-way valve 1 is in the second state, such as Figure 3 , Figure 6 , Figure 9 As shown, the valve core 20 moves to connect the first valve port 11 and the second valve port 12, connect the third valve port 13 and the fourth valve port 14, and close the fifth valve port 15. At this time, the air conditioning system 1000 can be in heating mode. The compressor 2 discharges the high-temperature and high-pressure gaseous heat exchange medium through the exhaust port 2a to the multi-way valve 1. This part of the high-temperature and high-pressure gaseous heat exchange medium enters the multi-way valve 1 through the first valve port 11 and flows out of the multi-way valve 1 through the second valve port 12. Then, this part of the high-temperature and high-pressure gaseous heat exchange medium first enters the indoor heat exchanger 3 through the first end 3a of the indoor heat exchanger 3. The medium flows from the second end 3b of the indoor heat exchanger 3 toward the throttling element 5 and enters the outdoor heat exchanger 4 through the second end 4b of the outdoor heat exchanger 4 to exchange heat with the outdoor heat exchanger 4. This part of the heat exchange medium flows from the first end of the outdoor heat exchanger 4 toward the fourth valve port 14 of the multi-way valve 1 and enters the multi-way valve 1 through the fourth valve port 14. Then it flows out of the multi-way valve 1 through the third valve port 13 of the multi-way valve 1 and flows toward the return port 2b of the compressor 2, thereby entering the compressor 2 for further compression.

[0116] Understandably, when the air conditioning system 1000 is in heating mode, the indoor heat exchanger 3 releases heat into the room to achieve heating, and at this time, the indoor heat exchanger 3 acts as a condenser. The outdoor heat exchanger 4 is responsible for absorbing heat from the outdoor air (it can absorb heat even in low-temperature environments), and at this time, the outdoor heat exchanger 4 acts as an evaporator.

[0117] In other words, the functions of the indoor heat exchanger 3 and the outdoor heat exchanger 4 depend on the flow direction of the heat exchange medium. By switching the state through the multi-way valve 1, the heating / cooling mode of the air conditioning system 1000 can be switched. The indoor heat exchanger 3 and the outdoor heat exchanger 4 can perform different functions in different modes of the air conditioning system 1000.

[0118] Since the air conditioning system 1000 according to the present invention is equipped with the multi-way valve 1 of the above embodiment, the air conditioning system 1000 can respond in a timely manner and has a variety of flow paths.

[0119] According to some embodiments of this utility model, the outdoor heat exchanger 4 includes multiple heat exchange branches. In the first state, the number of heat exchange branches connected in parallel is less than the number of heat exchange branches connected in parallel in the second state. That is, in the cooling mode of the air conditioning system 1000, the number of heat exchange branches connected in parallel in the outdoor heat exchanger 4 is less than the number of heat exchange branches connected in parallel in the heating mode of the air conditioning system 1000. Here, because the outdoor temperature is higher in the cooling mode, the outdoor heat exchanger 4, acting as a condenser, has a greater heat dissipation demand. Fewer heat exchange branches can increase the flow rate and enhance heat exchange efficiency. In the heating mode, the outdoor ambient temperature is lower, and the outdoor heat exchanger 4, acting as an evaporator, requires a larger heat exchange area and a more uniform distribution of the heat exchange medium. More heat exchange branches can reduce pressure drop and prevent uneven frost formation.

[0120] According to some embodiments of this utility model, such as Figure 2 As shown, the outdoor heat exchanger 4 includes a first heat exchange module and a second heat exchange module. The first heat exchange module includes at least one heat exchange branch, and the second heat exchange module includes at least one heat exchange branch. The air conditioning system 1000 also includes a one-way valve 6, which is connected to both the first and second heat exchange modules. The one-way valve 6 is unidirectionally open from the indoor heat exchanger 3 to the first heat exchange module. In a first state, the first and second heat exchange modules are connected in series; in a second state, the first and second heat exchange modules are connected in parallel. Specifically, the one-way valve 6 ensures that the heat exchange medium flows only in one direction and prevents reverse flow.

[0121] When multi-way valve 1 is in the first state, such as Figure 2 , Figure 5 , Figure 8As shown, the valve core 20 moves to connect the first valve port 11 with the fifth valve port 15, the second valve port 12 with the third valve port 13, and the fourth valve port 14 is closed, and the one-way valve 6 is closed so that the first heat exchange module and the second heat exchange module are connected in series. At this time, the air conditioning system 1000 is in cooling mode. The compressor 2 discharges the high-temperature and high-pressure gaseous heat exchange medium through the exhaust port 2a to the multi-way valve 1. This part of the high-temperature and high-pressure gaseous heat exchange medium enters the multi-way valve 1 through the first valve port 11 and flows out of the multi-way valve 1 through the fifth valve port 15. Then, this part of the high-temperature and high-pressure gaseous heat exchange medium flows through the one-way valve 6 and enters the outdoor heat exchanger 4 through the first end of the outdoor heat exchanger 4 to exchange heat with the outdoor heat exchanger 4. The medium after heat exchange flows from the second end 4b of the outdoor heat exchanger 4 toward the throttling element 5 and enters the indoor heat exchanger 3 through the second end 3b of the indoor heat exchanger 3 to exchange heat with the indoor heat exchanger 3. This part of the heat exchange medium flows from the first end 3a of the indoor heat exchanger 3 toward the second valve port 12 of the multi-way valve 1 and enters the multi-way valve 1 through the second valve port 12. Then it flows out of the multi-way valve 1 through the third valve port 13 and flows toward the return port 2b of the compressor 2, thereby entering the compressor 2 for further compression.

[0122] When multi-way valve 1 is in the second state, such as Figure 3 , Figure 6 , Figure 9 As shown, the valve core 20 moves to connect the first valve port 11 and the second valve port 12, connect the third valve port 13 and the fourth valve port 14, and close the fifth valve port 15, while the one-way valve 6 is opened, so that the first heat exchange module and the second heat exchange module are connected in parallel. At this time, the air conditioning system 1000 is in heating mode. The compressor 2 discharges the high-temperature and high-pressure gaseous heat exchange medium through the exhaust port 2a to the multi-way valve 1. This part of the high-temperature and high-pressure gaseous heat exchange medium enters the multi-way valve 1 through the first valve port 11 and flows out of the multi-way valve 1 through the second valve port 12. Then, this part of the high-temperature and high-pressure gaseous heat exchange medium first enters the indoor heat exchanger 3 through the first end 3a of the indoor heat exchanger 3 to exchange heat with the indoor heat exchanger 3. The medium after heat exchange flows from the second end 3b of the indoor heat exchanger 3 toward the throttling element 5 and enters the outdoor heat exchanger 4 through the second end 4b of the outdoor heat exchanger 4 to exchange heat with the outdoor heat exchanger 4. This part of the heat exchange medium flows from the first end of the outdoor heat exchanger 4 toward the fourth valve port 14 of the multi-way valve 1 and enters the multi-way valve 1 through the fourth valve port 14. Then it flows out of the multi-way valve 1 through the third valve port 13 of the multi-way valve 1 and flows toward the return port 2b of the compressor 2, thereby entering the compressor 2 for further compression.

[0123] According to some embodiments of this utility model, the number of heat exchange branches in the first heat exchange module is the same as the number of heat exchange branches in the second heat exchange module; or the number of heat exchange branches in the first heat exchange module is greater than the number of heat exchange branches in the second heat exchange module, and multiple heat exchange branches of the first heat exchange module are connected in parallel. Having the same number of heat exchange branches in the first and second heat exchange modules simplifies the layout of the heat exchange branches in the outdoor heat exchanger 4, reduces design and manufacturing complexity, and ensures a more uniform distribution of the heat exchange medium between the first and second heat exchange modules, reducing local overheating or undercooling caused by uneven flow. Furthermore, the similar frictional resistance of the first and second heat exchange modules makes the pressure drop distribution of the air conditioning system 1000 more stable, which is beneficial for the smooth operation of the compressor 2. Having a greater number of heat exchange branches in the first heat exchange module than in the second heat exchange module enhances the heat exchange capacity of the first heat exchange module and improves its heat exchange effect.

[0124] In this invention, the air conditioning system 1000, through the combination of a multi-way valve 1 and a one-way valve 6, can achieve different flow path designs for cooling and heating modes of a cooling and heating air conditioner. The air conditioning system 1000 designed according to this invention is described below with reference to specific embodiments:

[0125] exist Figures 1-3 In the first embodiment shown, the first valve port 11 and the second to fifth valve ports 12 to 15 are respectively located on both sides of the valve body 10 in the first direction, and the second to fifth valve ports 12 to 15 are spaced apart in the moving direction of the valve core 20. Figure 1As shown, the valve core 20 divides the valve chamber 10a inside the valve body 10 into a third chamber 101a and a fourth chamber 102a in a first direction. The first valve port 11 communicates with the third chamber 101a, and the second to fifth valve ports 12 communicate with the fourth chamber 102a. The valve core 20 moves to switch the communication relationship of each valve port. The valve core 20 includes a first partition plate and a second partition plate, which are spaced apart in the moving direction of the valve core 20. The surface of the first partition plate facing away from the second partition plate and the inner wall of the valve body 10 together define the first chamber 10b, and the surface of the second partition plate facing away from the first partition plate and the inner wall of the valve body 10 together define the second chamber 10c. The valve core 20 also includes a connecting plate 202 and a sliding plate 203. The connecting plate 202 is connected to the first partition plate and the second partition plate respectively. The sliding plate 203 is connected to the connecting plate 202 to move under the drive of the connecting plate 202. The third chamber 101a and the fourth chamber 102a are connected through a connecting hole 20a on the connecting plate 202. The sliding plate 203 extends in the moving direction of the valve core 20 and includes a closing portion 2032 and a bending portion 2031 connected to each other. The closing portion 2032 contacts a portion of the inner wall surface of the valve body 10 and is adapted to cover the fourth valve port 14 or the fifth valve port 15 to selectively shut off the fourth valve port 14 or the fifth valve port 15. The curved portion 2031 is spaced apart from a portion of the inner wall surface of the valve body 10 to define the first communication channel 20b. The sliding plate 203 moves so that the first communication channel 20b can connect the second valve port 12 and the third valve port 13 in the first state, and can also connect the third valve port 13 and the fourth valve port 14 in the second state.

[0126] like Figure 2 As shown, when the multi-way valve 1 is in the first state, the valve core 20 moves to connect the first valve port 11 with the fifth valve port 15, the first connecting channel 20b connects the second valve port 12 with the third valve port 13, and the fourth valve port 14 is closed, and the one-way valve 6 is closed, so that the first heat exchange module and the second heat exchange module are connected in series. At this time, the air conditioning system 1000 is in the cooling mode, and the flow path of the high-temperature and high-pressure gaseous heat exchange medium discharged from the compressor 2 exhaust port 2a is as follows: compressor 2 exhaust port 2a → multi-way valve 1 first valve port 11 → third chamber 101a → connecting hole 20a on the connecting plate 202 → fourth chamber 102a → multi-way valve 1 fifth valve port 15 → outdoor heat exchanger 4 first end → outdoor heat exchanger 4 second end 4b → throttling element 5 → indoor heat exchanger 3 second end 3b → indoor heat exchanger 3 first end 3a → multi-way valve 1 second valve port 12 → first connecting channel 20b → multi-way valve 1 third valve port 13 → compressor 2 return port 2b.

[0127] like Figure 3As shown, when the multi-way valve 1 is in the second state, the valve core 20 moves to connect the first valve port 11 and the second valve port 12, the first connecting channel 20b connects the third valve port 13 and the fourth valve port 14, the fifth valve port 15 is closed, and the one-way valve 6 is opened so that the first heat exchange module and the second heat exchange module are connected in parallel. At this time, the air conditioning system 1000 is in heating mode, and the flow path of the high-temperature and high-pressure gaseous heat exchange medium discharged from the compressor 2 exhaust port 2a is as follows: compressor 2 exhaust port 2a → multi-way valve 1 first valve port 11 → third chamber 101a → connecting hole 20a on the connecting plate 202 → fourth chamber 102a → multi-way valve 1 second valve port 12 → indoor heat exchanger 3 first end 3a → indoor heat exchanger 3 second end 3b → throttling element 5 → outdoor heat exchanger 4 second end 4b → outdoor heat exchanger 4 first end → multi-way valve 1 fourth valve port 14 → first connecting channel 20b → multi-way valve 1 third valve port 13 → compressor 2 return port 2b.

[0128] exist Figures 4-6 In the second embodiment shown, the first valve port 11 and the second to fifth valve ports 12 to 15 are respectively located on both sides of the valve body 10 in the first direction, and the second to fifth valve ports 12 to 15 are spaced apart in the moving direction of the valve core 20. Figure 4As shown, the valve core 20 divides the valve chamber 10a inside the valve body 10 into a third chamber 101a and a fourth chamber 102a in a first direction. The first valve port 11 communicates with the third chamber 101a, and the second to fifth valve ports 12 communicate with the fourth chamber 102a. The valve core 20 moves to switch the communication relationship of each valve port. The valve core 20 includes a first partition plate and a second partition plate, which are spaced apart in the moving direction of the valve core 20. The surface of the first partition plate facing away from the second partition plate and the inner wall of the valve body 10 together define the first chamber 10b, and the surface of the second partition plate facing away from the first partition plate and the inner wall of the valve body 10 together define the second chamber 10c. The valve core 20 also includes a connecting plate 202 and a plurality of sliding plates 203. The plurality of sliding plates 203 include a first sliding plate 21 and a second sliding plate 22. The connecting plate 202 is connected to the first partition plate and the second partition plate respectively. The first sliding plate 21 and the second sliding plate 22 are connected, and the first sliding plate 21 is connected to the connecting plate 202. The third chamber 101a and the fourth chamber 102a are connected through a connecting hole 20a on the connecting plate 202. The two ends of the first sliding plate 21 and the second sliding plate 22 are connected respectively in the valve core moving direction. The middle portions of the first sliding plate 21 and the second sliding plate 22 are spaced apart to define a second connecting channel 20c. The two ends of the second sliding plate 22 are adapted to contact the inner wall of the valve chamber 10a so that the second sliding plate 22 and the inner wall of the valve chamber 10a define a third connecting channel 20d. The two ends of the second sliding plate 22 are respectively formed with holes 2033, which are adapted to connect the second connecting channel 20c with at least one valve port when the second sliding plate 22 moves. In the first state, the second connecting channel 20c connects the second valve port 12 and the third valve port 13, and the third connecting channel 20d connects only to the fourth valve port 14. In the second state, the third connecting channel 20d connects the third valve port 13 and the fourth valve port 14, and the second connecting channel 20c connects only to the fifth valve port 15. The second connecting channel 20c and the third connecting channel 20d are not connected.

[0129] like Figure 5As shown, when the multi-way valve 1 is in the first state, the valve core 20 moves to connect the first valve port 11 with the fifth valve port 15, the second connecting channel 20c connects the second valve port 12 with the third valve port 13, and the fourth valve port 14 is closed, and the one-way valve 6 is closed, so that the first heat exchange module and the second heat exchange module are connected in series. At this time, the air conditioning system 1000 is in the cooling mode, and the flow path of the high-temperature and high-pressure gaseous heat exchange medium discharged from the compressor 2 exhaust port 2a is as follows: compressor 2 exhaust port 2a → multi-way valve 1 first valve port 11 → third chamber 101a → connecting hole 20a on the connecting plate 202 → fourth chamber 102a → multi-way valve 1 fifth valve port 15 → outdoor heat exchanger 4 first end → outdoor heat exchanger 4 second end 4b → throttling element 5 → indoor heat exchanger 3 second end 3b → indoor heat exchanger 3 first end 3a → multi-way valve 1 second valve port 12 → second connecting channel 20c → multi-way valve 1 third valve port 13 → compressor 2 return port 2b.

[0130] like Figure 6 As shown, when the multi-way valve 1 is in the second state, the valve core 20 moves to connect the first valve port 11 and the second valve port 12, the third connecting channel 20d connects the third valve port 13 and the fourth valve port 14, the fifth valve port 15 is closed, and the one-way valve 6 is opened so that the first heat exchange module and the second heat exchange module are connected in parallel. At this time, the air conditioning system 1000 is in heating mode, and the flow path of the high-temperature and high-pressure gaseous heat exchange medium discharged from the compressor 2 exhaust port 2a is as follows: compressor 2 exhaust port 2a → multi-way valve 1 first valve port 11 → third chamber 101a → connecting hole 20a on the connecting plate 202 → fourth chamber 102a → multi-way valve 1 second valve port 12 → indoor heat exchanger 3 first end 3a → indoor heat exchanger 3 second end 3b → throttling element 5 → outdoor heat exchanger 4 second end 4b → outdoor heat exchanger 4 first end → multi-way valve 1 fourth valve port 14 → third connecting channel 20d → multi-way valve 1 third valve port 13 → compressor 2 return port 2b.

[0131] exist Figures 7-9 In the third embodiment shown, the first valve port 11 to the fifth valve port 15 are located on the same side of the valve body 10 in the first direction, and the first valve port 11 to the fifth valve port 15 are spaced apart in the moving direction of the valve core 20. In this case, the medium flowing through the multi-way valve 1 only flows through the fourth connecting channel 20e and the fifth connecting channel 20f, and the valve core 20 moves to switch the connection relationship of each valve port. Figure 7As shown, the valve core 20 includes a first spacer plate and a second spacer plate, which are spaced apart in the moving direction of the valve core 20. The surface of the first spacer plate facing away from the second spacer plate, together with the inner wall of the valve body 10, defines a first chamber 10b. The surface of the second spacer plate facing away from the first spacer plate, together with the inner wall of the valve body 10, defines a second chamber 10c. The valve core 20 also includes a connecting plate 202 and a plurality of sliding plates 203. The plurality of sliding plates 203 include a first sliding plate 21 and a second sliding plate 22. The connecting plate 202 is connected to the first spacer plate and the second spacer plate respectively. The first sliding plate 21 and the second sliding plate 22 are connected, and the first sliding plate 21 is connected to the connecting plate 202. The first sliding plate 21 and the second sliding plate 22 are connected at their two ends in the moving direction of the valve core. The middle portions of the first sliding plate 21 and the second sliding plate 22 are spaced apart to define a fourth communicating channel 20e. The second sliding plate 22 and the inner wall of the valve chamber 10a define a fifth communicating channel 20f. Furthermore, both ends of the second sliding plate 22 are adapted to contact the inner wall of the valve cavity 10a. Each end of the second sliding plate 22 has a hole 2033, which is adapted to connect the fourth connecting channel 20e to at least one valve port when the second sliding plate 22 moves. In the first state, the fourth connecting channel 20e connects the first valve port 11 and the fifth valve port 15, the fifth connecting channel 20f connects the second valve port 12 and the third valve port 13, and the valve core 20 blocks the fourth valve port 14. In the second state, the fourth connecting channel 20e connects the first valve port 11 and the second valve port 12, the fifth connecting channel 20f connects the third valve port 13 and the fourth valve port 14, and the valve core 20 blocks the fifth valve port 15. The fourth connecting channel 20e and the fifth connecting channel 20f are not connected.

[0132] like Figure 8 As shown, when the multi-way valve 1 is in the first state, the valve core 20 moves to the fourth connecting channel 20e to connect the first valve port 11 with the fifth valve port 15, the fifth connecting channel 20f to connect the second valve port 12 with the third valve port 13, and the fourth valve port 14 is closed, and the one-way valve 6 is closed, so that the first heat exchange module and the second heat exchange module are connected in series. At this time, the air conditioning system 1000 is in the cooling mode, and the flow path of the high-temperature and high-pressure gaseous heat exchange medium discharged from the compressor 2 exhaust port 2a is as follows: compressor 2 exhaust port 2a → multi-way valve 1 first valve port 11 → fourth connecting channel 20e → multi-way valve 1 fifth valve port 15 → outdoor heat exchanger 4 first end → outdoor heat exchanger 4 second end 4b → throttling element 5 → indoor heat exchanger 3 second end 3b → indoor heat exchanger 3 first end 3a → multi-way valve 1 second valve port 12 → fifth connecting channel 20f → multi-way valve 1 third valve port 13 → compressor 2 return port 2b.

[0133] like Figure 9As shown, when the multi-way valve 1 is in the second state, the valve core 20 moves to the fourth connecting channel 20e to connect the first valve port 11 and the second valve port 12, the fifth connecting channel 20f to connect the third valve port 13 and the fourth valve port 14, the fifth valve port 15 is closed, and the one-way valve 6 is opened, so that the first heat exchange module and the second heat exchange module are connected in parallel. At this time, the air conditioning system 1000 is in the heating mode, and the flow path of the high-temperature and high-pressure gaseous heat exchange medium discharged from the compressor 2 exhaust port 2a is as follows: compressor 2 exhaust port 2a → multi-way valve 1 first valve port 11 → fourth connecting channel 20e → multi-way valve 1 second valve port 12 → indoor heat exchanger 3 first end 3a → indoor heat exchanger 3 second end 3b → throttling element 5 → outdoor heat exchanger 4 second end 4b → outdoor heat exchanger 4 first end → multi-way valve 1 fourth valve port 14 → fifth connecting channel 20f → multi-way valve 1 third valve port 13 → compressor 2 return port 2b.

[0134] The specific structure of the multi-way valve 1 of this utility model is not limited to the three embodiments shown above; other structures that can achieve the above-mentioned channel connection relationship are also applicable.

[0135] The following is a brief description of the air conditioner 10000 according to this utility model.

[0136] like Figure 19 As shown, the air conditioner 10000 according to the present invention includes the air conditioning system 1000 described in any of the above embodiments. Since the air conditioner 10000 according to the present invention is equipped with the air conditioning system 1000 of the above embodiments, the user experience of the air conditioner 10000 is better.

[0137] In summary, the multi-port valve 1 according to this utility model includes at least five valve ports and has at least a first state and a second state. The multi-port valve 1 has a variety of flow paths to optimize the performance of the air conditioning system 1000 during cooling and heating.

[0138] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0139] Although embodiments of the present invention have been shown and described above, variations, modifications, substitutions and alterations can be made to the above embodiments.

Claims

1. A multi-way valve, characterized in that, include: The valve body has a valve cavity and multiple valve ports, including a first valve port, a second valve port, a third valve port, a fourth valve port and a fifth valve port. A valve core is movably disposed within the valve cavity so that the multi-way valve has a first state and a second state, wherein one of the valve ports is closed in both the first state and the second state. in In the first state, the first valve port is connected to the fifth valve port, the second valve port is connected to the third valve port, and the fourth valve port is closed; In the second state, the first valve port and the second valve port are connected, the third valve port and the fourth valve port are connected, and the fifth valve port is closed.

2. The multi-way valve according to claim 1, characterized in that, The first valve port, the second valve port, the third valve port, the fourth valve port and the fifth valve port are arranged sequentially at intervals along the circumference of the axis of the valve body, and the valve core is rotatably disposed in the valve cavity; in In the first state and the second state, the two valve ports that are closed are adjacent to each other; and / or In the first state, the two connected valve ports are adjacent to each other; and / or In the second state, the two connected valve ports are adjacent to each other.

3. The multi-way valve according to claim 2, characterized in that, The multi-way valve has at least two connecting channels, and the valve port on the valve body can selectively connect to or not connect to one of the connecting channels; wherein The valve core has at least two communicating channels formed therein; or The valve core and the valve cavity together form at least two communicating spaces, which together form the communicating channel; or The valve core has at least one of the communicating channels, and the valve core and the valve cavity together form at least one communicating space, the communicating space forming the communicating channel.

4. The multi-way valve according to claim 1, characterized in that, The second valve port, the third valve port, the fourth valve port, and the fifth valve port are arranged sequentially at intervals along the length of the valve body, and the valve core is movable along the length of the valve body; wherein In the first state and the second state, the two valve ports that are closed are adjacent to each other; and / or In the first state, at least one set of connected valve ports are adjacent; and / or In the second state, at least one set of connected valve ports are adjacent.

5. The multi-way valve according to claim 4, characterized in that, In the direction of movement of the valve core, the interval between the third valve port and the fourth valve port is the first interval, the interval between the third valve port and the other valve ports excluding the fourth valve port is the second interval, and the interval between the fourth valve port and the other valve ports excluding the third valve port is the third interval. The first interval is smaller than the second interval and the first interval is smaller than the third interval.

6. The multi-way valve according to claim 4, characterized in that, The valve core and the valve body cooperate to define a first chamber and a second chamber. In the direction of movement of the valve core, the first chamber and the second chamber are located on both sides of the valve cavity so as to push the valve core to move by pressure difference.

7. The multi-way valve according to claim 6, characterized in that, The valve core has a symmetrical structure in the direction of movement of the valve core.

8. The multi-way valve according to claim 4, characterized in that, The valve chamber is provided with a drive structure suitable for driving the valve core to move on at least one side of the valve core's movement direction.

9. The multi-way valve according to claim 8, characterized in that, The driving structure includes: A first magnetic element is disposed on one side of the valve core in the direction of movement; A second magnetic element is disposed on the inner wall of the valve cavity and opposite to the first magnetic element, and the second magnetic element is adapted to electromagnetically cooperate with the first magnetic element. An elastic element is disposed between the first magnetic element and the second magnetic element and is connected to both the first magnetic element and the second magnetic element respectively; wherein The electromagnetic force between the first magnetic element and the second magnetic element is adapted to change so as to drive the valve core to move.

10. The multi-way valve according to claim 4, characterized in that, The valve core is used to divide the valve cavity into a third chamber and a fourth chamber along a first direction. The valve core is provided with a connecting hole, and the third chamber and the fourth chamber are connected through the connecting hole. The third chamber is provided with the first valve port, and the fourth chamber is provided with the second to the fifth valve ports; The valve core is provided with a second connecting channel and a third connecting channel. In the first state, the second connecting channel connects the second valve port and the third valve port, and the third connecting channel only connects to the fourth valve port. In the second state, the third connecting channel connects the third valve port and the fourth valve port, the second connecting channel connects only to the fifth valve port, and the first direction intersects the movement direction of the valve core.

11. The multi-way valve according to claim 10, characterized in that, The valve core includes a first slide plate and a second slide plate, the first slide plate and the second slide plate being spaced apart along the first direction to define a second communication channel, and the second slide plate and the inner wall of the valve cavity defining a third communication channel.

12. The multi-way valve according to claim 4, characterized in that, The valve core is provided with a fourth connecting channel and a fifth connecting channel. In the first state, the fourth connecting channel connects the first valve port and the fifth valve port, the fifth connecting channel connects the second valve port and the third valve port, and the valve core blocks the fourth valve port. In the second state, the fourth connecting channel connects the first valve port and the second valve port, the fifth connecting channel connects the third valve port and the fourth valve port, and the valve core blocks the fifth valve port.

13. The multi-way valve according to claim 1, characterized in that, The valve core is used to divide the valve cavity into a third chamber and a fourth chamber along a first direction. The valve core is provided with a connecting hole, and the third chamber and the fourth chamber are connected through the connecting hole. The third chamber is provided with the first valve port, and the fourth chamber is provided with the second to the fifth valve ports; The valve core has a first connecting channel. In the first state, the first connecting channel connects the second valve port and the third valve port. In the second state, the first connecting channel connects the third valve port and the fourth valve port. The first direction intersects the movement direction of the valve core.

14. The multi-way valve according to claim 13, characterized in that, In the first state, the valve core blocks the fourth valve port; in the second state, the valve core blocks the fifth valve port.

15. An air conditioning system, characterized in that, include: The compressor has an exhaust port and an exhaust port; A multi-port valve, wherein the multi-port valve is a multi-port valve according to any one of claims 1-14, wherein the first valve port is connected to the exhaust port, and the third valve port is connected to the return port; An indoor heat exchanger, wherein a first end of the indoor heat exchanger is connected to the second valve port; An outdoor heat exchanger, the first end of which is connected to the fourth valve port and the fifth valve port respectively, and the second end of which is connected to the second end of the indoor heat exchanger through a throttling element.

16. The air conditioning system according to claim 15, characterized in that, The outdoor heat exchanger includes multiple heat exchange branches, and the number of heat exchange branches connected in parallel in the first state is less than the number of heat exchange branches connected in parallel in the second state.

17. The air conditioning system according to claim 16, characterized in that, The outdoor heat exchanger includes a first heat exchange module and a second heat exchange module. The first heat exchange module includes at least one heat exchange branch, and the second heat exchange module includes at least one heat exchange branch. The air conditioning system also includes a one-way valve, which is connected to the first heat exchange module and the second heat exchange module respectively. The one-way valve is unidirectionally open from the indoor heat exchanger to the first heat exchange module. In the first state, the first heat exchange module and the second heat exchange module are connected in series. In the second state, the first heat exchange module and the second heat exchange module are connected in parallel.

18. The air conditioning system according to claim 17, characterized in that, The number of heat exchange branches in the first heat exchange module is the same as the number of heat exchange branches in the second heat exchange module; or The number of heat exchange branches in the first heat exchange module is greater than the number of heat exchange branches in the second heat exchange module, and the multiple heat exchange branches of the first heat exchange module are connected in parallel.

19. An air conditioner, characterized in that, Including the air conditioning system according to any one of claims 15-18.

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